Here's why your induction cooktop makes a buzzing noise, and how to know if it's a problem

Steaming pan on induction cooktop — (Image credit: Shutterstock)

Induction cooktops are a savvy switch for those hoping to cut down energy costs and make their kitchen safer. By heating pans directly, as opposed to heating a glass surface which in turn will heat your pan, they can bring water to a boil in a matter of minutes.

But this smart tech can feel overwhelming, especially if you've only recently made the switch. And one of the most common causes for concern among induction users is a low-pitched buzzing sound.

Why is my induction cooktop buzzing?

A black induction cooktop from Hisense on a kitchen countertop — (Image credit: Tom's Guide)

“A gentle buzzing or humming sound from an induction cooktop is normal and not usually a fault"
Chloe Blanchfield, product marketing manager at Hisense UK

Induction cooktops use magnetic energy to heat your pans, and according to Chloe Blanchfield, product marketing manager at Hisense UK, this can cause a low buzing sound.

“A gentle buzzing or humming sound from an induction cooktop is normal and not usually a fault," Blanchfield told me. "The sound usually occurs because magnetic energy (electromagnetic fields) heats the pan and can cause it to vibrate slightly, especially on a higher heat or with thinner cookware."

So, if your cookware is on the thinner side, this may be contributingt to the buzzing noice. This could be a simple fix, especially if the buzzing irritates you, as switching to a tri-ply cookware set is a lot cheaper than ditching your whole cooktop!

However, according to Blanchfield, the noise could also be down to the internal cooling featured in some cooktops.

"The cooktop’s internal cooling fan may also contribute to any buzzing sounds or vibrations, but usually aren’t anything to be concerned about.”

When should I be concerned?

Induction switch off — (Image credit: Future)

Although it's clear that a buzzing noise is a normal feature in many induction cooktops, there are some cases where it could be worth getting a second opinion.

"It’s only a cause for concern if the noise from the induction cooktop is very loud or unusual," Blanchfield told me.

What counts as unusual, you may wonder? According to Hisense, this would be "rattling or high-pitched whining, or if it continues when the cooker is on a low heat. If so, the cooktop should be checked.”

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Millie is the Managing Editor of Homes at Tom's Guide. She's been reviewing home tech for over five years, testing everything from coffee makers to the latest vacuum cleaners.

With particular expertise in cookware and kitchen appliances, you'll struggle to find an air fryer Millie hasn't tested. She's traveled the world reporting on the latest home innovations and product launches, learning how to use pizza ovens from Pizzaiolos in Naples, and touring the De'Longhi factory in Venice. Millie is also an SCA-Certified barista.

When she's not reporting on home and appliance trends, Millie loves watching live music. She's currently learning the guitar - naturally, she plays a Fender.

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